You can! I had an instructor want to remove deadlines from all assignments and they didn’t want to have to do it one assignment at a time. The process to get this single-access-spreadsheet function set up is a little detailed, but once in place, you can quickly access ALL assignment parameters in one spreadsheet. If you make a change to a quiz name on the spreadsheet, it changes on Canvas. Change a due date on the spreadsheet and it’s done on Canvas. Want to quickly change a set of due dates? It’s all there on one page. Nice right! Check it out and see if you could benefit from this function.